I am trying to export a complete part that I have modified in Autodesk Inventor and just can't get it to work. It is only exporting the top of my part when I want to export the entire .ipt file to print at Shapeways. I have read lots of tutorials and tried to use assembly and Shrinkwrap, but I just can't figure it out. Does anyone know how to combine all of the parts in the attached .ipt file and export them as an .stl file?

Thanks for the response, but I JUST figured it out. After spending hours and hours working on it, I was able to get it working minutes after finally posting a request for help. Of course, that would be how it would happen.